# SDR 8LFA202608250003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2026
- Submitted: August 26, 2026
- Operation: Air carrier
- Aircraft: [N409LF](https://openairdocs.org/aircraft/N409LF), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 56331
- Aircraft time: 1,677 hours, 4,778 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Resistor
- Part number: ES630031
- Condition: Failed
- Location: Zone 100
- Component: Vapor Cycle Sys, Aircom
- Component part number: 407EC2033
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: H, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8LFA202608250003

## Discrepancy

DURING FLIGHT SMOKE/FUMES EMANATED FROM LEFT AIR CONDITIONING BLOWER.  TROUBLESHOOTING REVEALED THAT A FAILED RESISTOR CAUSED THE BLOWER MOTOR TO FAIL AND PRODUCE SMOKE/FUMES.  AIR COMM VAPOR CYCLE AIR CONDITIONING  STC# SR00222DE INSTALLED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.